Blue print holder



Dec. 25, 1956 D. WAHLSTROM 25775 061 BLUE PRINT HOLDER Filed Oct. 20;1953 2 Sheets-Sheet k //\/z/5/\/ TUE DALE. L. WAHLSTR Dec. 25, 1956 D.L. WAHLSTROM BLUE PRINT HOLDER 2 Shoots-Sheet 2 Filed Oct. 20. 1953 ll/ff DALE L WAHLSTROM flTTUF/VES United States Patent BLUE PRINT HOLDERDale L. Wahlstrom, Astoria, Oreg.

Application October 20, 1953, Serial No. 387,293

1 Claim. (Cl. 45-131) This invention relates generally to the making andreading of drawings in the drafting room, studio, the shop, or in thefield, and particularly to a holder especially adapted for handlinglarge plans, prints or papers.

The main object of this invention is to provide a holder on which may bemounted paper in roll form in a manner that it may be easily inserted orremoved and, when mounted on the board, any portion of the paper may bemade easily accessible.

The second object is to provide a protection for the drawing againstmoisture and dirt, leaving only the portion in use exposed, or making itpossible to move the entire drawing or paper within the protection ofthe device.

The third object is to so simplify the construction and use of thedevice, as well as keep its weight and cost to a minimum that it may bewithin reach of the average drawing room.

I accomplish these and other objects in the manner set forth in thefollowing specification as illustrated in the accompanying drawings, inwhich- Fig. l is a plan view with parts broken away and in section.

Fig. 2 is an end elevation of Fig. 1 but at a larger scale.

Fig. 3 is a section taken along the line 33 in Fig. 1.

Fig. 4 is a section taken along the line 44 in Fig. 1.

Fig. 5 is a section taken along the line 55 in Fig. 2.

Fig. 6 is a section taken along the line 66 in Fig. 5.

Fig. 7 is a perspective view of one cap used on the operating end of thedevice. The other end cap is the same except for the center hole, whichis smaller. I

Fig. 8 is a perspecttive view of an alternate form in which thecylinders may be secured, as shown, to a board or table top or workbenchtop.

Like numbers of reference refer to the same or similar parts throughoutthe several views.

Referring in detail to the drawings, there is shown a flat drawingsurface 10 having flanged edges 11, which serve to stiffen the member 10and form a side guide for paper or instruments.

The member 10 is made of metal and terminated at each end in a tubularcasing 12, which is tangent to the surface 10 at one point and spacedtherefrom at the turned edge 13 to form a paper slot 14.

On one end of each tubular member 12 is a cap 15 having a hole 16 formedin the center for the pin 17 of a wooden roller 18. The cap 15 has abeaded flange 19, which fits over a bead in the tube 12.

On the opposite end of the tube 12 is mounted a cap 20 similar to thecap 15, except that it has a larger central opening 21, which acts as ajournal for the hub 22 formed on the metal disk 23, which is perforatedto receive the reduced end 24 of the roller 18. A light spring washer 25is placed against the cap 20 and a roll turning wheel 26 is placed onthe outer side of the washer 25. Screws 27 pass through the wheel 26,and the washer 25 into the roller 18.

A pin handle 28 disposed on the wheel 26 makes it convenient to turn theWooden roller 18 by hand. On each roller 18 are a plurality of spongerubber roll-s 29, which are secured to the rollers 18 and are largeenough in diameter to provide frictional engagement with the interior ofthe paper roll 30.

Both of the caps 15 and 20 are provided with cutouts 31 in the flanges19 to provide clearance for the edges 32 of the paper 33 from the roll30.

In the modification shown in Fig. 8, is shown the drawing enclosing tube34 mounted on a drawing board 35, or

table top, by means of fastening screws 36 which pass through a lip 37,which corresponds with the tangent portion of the member 10 on the firstdescribed formof the device.

In Fig. 3 is shown a cross section of the board or drawing surface 10.It will be seen that the edge 11 is turned up, whereas the edge 11-A isturned under the member 10, while the bead 11-B serves both as a guideand as a stiffener for the member 10.

The operation of the device is as follows: The ends of the two tubes 18are removed and the roll of paper 30 is inserted with part of the rollin each cylinder. The ends 19,Which carry the turning handles 26, arethen re-insorted into the ends of the tubes 18. The sponge rubber rolls29 mounted on the rolls 18 establish friction between the print and theroller, which permits rolling the paper in either direction. The devicemay be operated by sliding the paper by frictional engagement with thehands without the use of the wheel 26.

I claim:

A portable holder for rolled blue prints and the like comprising astiff, flat sheet of material having upwardly rolled end portionsforming cylindrical paper roll holders at opposite ends of said sheet,said rolled end portions being tangent to that flat portion of the sheettherebetween so that said fiat and rolled portions will rest flatagainst a fiat supporting surface, an upstanding flange along one edgeof the flat portion of said sheet and a bead along the opposite edge tostiffen said flat portion between said rolled end portions, the ends ofsaid sheet being downturned in said roller portions and defining paperslots for said roll holders adjacent the lines of tangency, flanged endcaps frictionally engaged on said cylindrical holders having slots inregistry with said paper slots, bearing means in said end caps, paperrollers rotatably mounted in said bearing means, and a plurality ofsponge rubber discs on said rollers adapted to frictionally engage theend of a sheet of paper inserted in one of said paper slots and wind thepaper around said discs and roller when the roller is turned.

References Cited in the file of this patent UNITED STATES PATENTS1,001,402 Hindle Aug. 22, 1911 1,143,901 Grand June 22, 1915 1,177,127Miller Mar. 28, 1916 1,284,828 Walby Nov. 12, 1918 1,934,952 ShoemakerNov. 14, 1933 1,952,775 Quinlan Mar. 27, 1934 1,954,449 Klee Apr. 10,1934 2,170,133 Eitzen Aug. 22, 1939 2,174,660 Hirsch Oct. 3, 19392,258,525 Vigurs Oct. 7, 1941 2,652,657 Joy Sept. 22, 1953 I

